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US20080092383A1 - Process for the production of components for combustion engines or turbines - Google Patents

Process for the production of components for combustion engines or turbines Download PDF

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Publication number
US20080092383A1
US20080092383A1 US11/869,309 US86930907A US2008092383A1 US 20080092383 A1 US20080092383 A1 US 20080092383A1 US 86930907 A US86930907 A US 86930907A US 2008092383 A1 US2008092383 A1 US 2008092383A1
Authority
US
United States
Prior art keywords
process according
carried out
temperature
metal
debound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/869,309
Other languages
English (en)
Inventor
Eckard Aust
Wolfgang Limberg
Ralf Pieplow
Nils Mildner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GKSS Forshungszentrum Geesthacht GmbH
Original Assignee
GKSS Forshungszentrum Geesthacht GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GKSS Forshungszentrum Geesthacht GmbH filed Critical GKSS Forshungszentrum Geesthacht GmbH
Assigned to GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH reassignment GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AUST, ECKARD, LIMBERG, WOLFGANG, MILDNER, NILS, PIEPLOW, RALF
Publication of US20080092383A1 publication Critical patent/US20080092383A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49298—Poppet or I.C. engine valve or valve seat making

Definitions

  • the present invention relates to a process for the production of components for combustion engines or turbines, in particular for the production of hollow-valve components.
  • valves are mobile components, the driving power to be applied increases exponentially with the weight of the oscillating masses, i.e. the valves. Thus there is a requirement to further optimize valves in respect of weight without losses in mechanical and thermal strength.
  • Hollow valves with a stem, a valve cone and a valve disk, wherein valve cone and valve disk together form a cavity are known for example from DE 198 04 053 A1. Such hollow valves or hollow valve parts are currently moulded either by hot extrusion or upsetting and forging. Heat-resistant steels such as material nos. 1.4882 (X 50 CrMnNiNbN 21 9), 1.4871 (X 53 CrMnNiN 21 9) or 2.4955 (NiFe 25 Cr 20 NbTi) are predominantly used for the valve cone and valve disk.
  • the object of the invention is therefore to provide a process for the production of components for combustion engines or turbines, in particular for the production of hollow-valve components such as valve cones or valve disks with which other materials can also be processed profitably.
  • the object is achieved by a process for the production of components for combustion engines or turbines, in which:
  • titanium-based materials in addition to the martensitic-ferritic and austenitic steels or nickel-based alloys, titanium-based materials in particular can also be processed profitably into hollow-valve components, whereby a further weight saving compared with the known hollow valves can be achieved.
  • Titanium alloys which contain aluminium and/or vanadium as additional constituents are preferably used. These additional alloy constituents are each preferably contained in a quantity of 2 to 10 wt.-% based on the overall weight of the alloy.
  • the binding agent is preferably selected from the group composed of: polyamides, polyoxymethylene, polycarbonate, styrene-acrylonitrile-copolymerisate, polyimide, natural waxes and oils, thermosetting plastics, cyanates, polypropylene, polyacetate, polyethylene, ethylene vinyl acetate, polyvinyl alcohol, polyvinyl chloride, polystyrene, polymethyl methacylate, anilines, mineral oils, water, agar, glycerol, polyvinyl butyryl, polybutyl methacrylate, cellulose, oleic acid, phthalates, paraffin waxes, carnauba wax, ammonium polyacrylate, digylceride stearate and oleate, glyceryl monostearate, isopropyl titanate, lithium stearate, monoglycerides, formaldehyde, octanoic acid phosphate, olefin sulphonates, phosphat
  • the mixing in the compounder is preferably carried out at a temperature of 50 to 250° C., most preferably 90 to 150° C.
  • the injection moulding is also preferably carried out at a temperature of the mixture of 90 to 150° C. and preferably at a pressure of 400 to 800 bar.
  • the chemical debinding is preferably carried out in a paraffin bath, preferably in a hexane bath.
  • the chemical debinding is carried out at a temperature of preferably 10 to 65° C., more preferably 30 to 50° C.
  • the thermal debinding is carried out at a temperature of less than 450° C., preferably 200 to 350° C. and preferably under vacuum at a pressure of preferably 2 to 20 mbar.
  • the sintering is preferably carried out at 80 to 90% of the melting temperature of metal or metal alloy and more preferably under an inert gas atmosphere.
  • the inert gas is preferably argon.
  • the sintering can also be carried out under vacuum. In this case, the pressure is preferably 10-3 to 10-5 mbar.
  • Hollow-valve components produced in this way can be combined with each other in conventional manner by form- and force-locking and also molten joining processes.
  • valve disk and valve cone can be combined by a shrink fit.
  • Valve cone and valve stem can be combined by a molten joining process.
  • FIG. 1 is an illustration of the combined valve disk and cone in top view and in section along the line A-A.
  • FIG. 2 shows a produced hollow-valve component according to the preferred embodiment as a whole component (right) and split (left).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
US11/869,309 2006-10-20 2007-10-09 Process for the production of components for combustion engines or turbines Abandoned US20080092383A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049844A DE102006049844A1 (de) 2006-10-20 2006-10-20 Verfahren zur Herstellung von Bauteilen für Verbrennungsmotoren oder Turbinen
DE102006049844.5 2006-10-20

Publications (1)

Publication Number Publication Date
US20080092383A1 true US20080092383A1 (en) 2008-04-24

Family

ID=38657272

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/869,309 Abandoned US20080092383A1 (en) 2006-10-20 2007-10-09 Process for the production of components for combustion engines or turbines

Country Status (8)

Country Link
US (1) US20080092383A1 (ja)
EP (1) EP1925682B1 (ja)
JP (1) JP2008180211A (ja)
CN (1) CN101413410B (ja)
AT (1) ATE457039T1 (ja)
DE (2) DE102006049844A1 (ja)
ES (1) ES2337302T3 (ja)
PT (1) PT1925682E (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120153549A1 (en) * 2010-12-16 2012-06-21 Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH Process for Producing Shaped Metal Bodies Having a Structured Surface
US20160090327A1 (en) * 2004-10-15 2016-03-31 Taisei Kogyo Co., Ltd. Method of making a porous sintered body, a compound for making the porous sintered body, and the porous sintered body
FR3037514A1 (fr) * 2015-06-16 2016-12-23 Snecma Procede de fabrication d'une piece tridimensionnelle fritee a partir d'une poudre et installation permettant de mettre en oeuvre un tel procede
US9533353B2 (en) 2012-02-24 2017-01-03 Hoeganaes Corporation Lubricant system for use in powder metallurgy
EP3524280A1 (en) 2018-02-12 2019-08-14 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Method for producing a metallic implant
US11305346B2 (en) * 2017-04-27 2022-04-19 Federal-Mogul Valvetrain Gmbh Poppet valve and method of its manufacture

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117677B (zh) * 2013-04-23 2017-02-08 昆山广兴电子有限公司 一种金属扇轮的制造方法
CN103240418B (zh) * 2013-05-23 2014-12-24 北京科技大学 一种具有中空内部结构增压涡轮的近终成形方法
CN105624452B (zh) * 2016-01-05 2018-04-24 南方科技大学 多孔金属间化合物的制备方法
ITUA20163944A1 (it) 2016-05-30 2017-11-30 Nuovo Pignone Tecnologie Srl Process for making a component of a turbomachine, a component obtainable thereby and turbomachine comprising the same / Processo per ottenere un componente di turbomacchina, componente da esso ottenibile e turbomacchina che lo comprende
CN109108267B (zh) * 2018-08-03 2019-12-20 深圳市富荣新材料科技有限公司 一种组合物、制备方法及在金属注塑成型材料领域的应用
CN109897980B (zh) * 2019-02-22 2020-07-21 北京科技大学 钛或钛合金粉的粉末注射成形方法及钛或钛合金制品
CN113399667B (zh) * 2021-06-11 2022-08-16 深圳市泛海统联精密制造股份有限公司 一种钛合金金属粉末注射成型喂料及其制备方法
CN114472879B (zh) * 2021-12-20 2023-04-25 中南大学 一种纯钛粉末注射成形用粘结剂及其制备方法和应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478790A (en) * 1981-05-22 1984-10-23 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Method and apparatus for manufacturing molded articles of alloyed material
JPH02274382A (ja) * 1989-04-12 1990-11-08 Nippon Steel Corp エンジンバルブの肉盛溶接方法
US6351258B1 (en) * 1997-06-30 2002-02-26 Sony Corporation Switcher system and I/O switching method
US20090072176A1 (en) * 2005-09-20 2009-03-19 Thomas Rosch Valve Device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804053A1 (de) * 1998-02-03 1999-08-05 Mwp Mahle J Wizemann Pleuco Gm Leichtbauventil
DE10336701B4 (de) * 2003-08-09 2006-12-21 Mtu Aero Engines Gmbh Verfahren zur Herstellung von Bauteilen
DE102004053874A1 (de) * 2004-11-04 2006-05-11 Gkss-Forschungszentrum Geesthacht Gmbh Verfahren zum Herstellen von Erzeugnissen aus einem metallischen Verbundwerkstoff

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478790A (en) * 1981-05-22 1984-10-23 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Method and apparatus for manufacturing molded articles of alloyed material
JPH02274382A (ja) * 1989-04-12 1990-11-08 Nippon Steel Corp エンジンバルブの肉盛溶接方法
US6351258B1 (en) * 1997-06-30 2002-02-26 Sony Corporation Switcher system and I/O switching method
US20090072176A1 (en) * 2005-09-20 2009-03-19 Thomas Rosch Valve Device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160090327A1 (en) * 2004-10-15 2016-03-31 Taisei Kogyo Co., Ltd. Method of making a porous sintered body, a compound for making the porous sintered body, and the porous sintered body
US11819917B2 (en) 2004-10-15 2023-11-21 Taisei Kogyo Co., Ltd. Method of making a porous sintered body, a compound for making the porous sintered body, and the porous sintered body
US20120153549A1 (en) * 2010-12-16 2012-06-21 Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH Process for Producing Shaped Metal Bodies Having a Structured Surface
US9533353B2 (en) 2012-02-24 2017-01-03 Hoeganaes Corporation Lubricant system for use in powder metallurgy
FR3037514A1 (fr) * 2015-06-16 2016-12-23 Snecma Procede de fabrication d'une piece tridimensionnelle fritee a partir d'une poudre et installation permettant de mettre en oeuvre un tel procede
US11305346B2 (en) * 2017-04-27 2022-04-19 Federal-Mogul Valvetrain Gmbh Poppet valve and method of its manufacture
EP3524280A1 (en) 2018-02-12 2019-08-14 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Method for producing a metallic implant

Also Published As

Publication number Publication date
DE102006049844A1 (de) 2008-04-24
EP1925682B1 (de) 2010-02-03
JP2008180211A (ja) 2008-08-07
EP1925682A1 (de) 2008-05-28
DE502007002782D1 (de) 2010-03-25
ATE457039T1 (de) 2010-02-15
ES2337302T3 (es) 2010-04-22
CN101413410B (zh) 2012-06-27
PT1925682E (pt) 2010-05-10
CN101413410A (zh) 2009-04-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH, GERMAN DEM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AUST, ECKARD;LIMBERG, WOLFGANG;PIEPLOW, RALF;AND OTHERS;REEL/FRAME:020240/0858

Effective date: 20071203

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION